He carried forward his researches on terpernoids in India too and worked on the synthesis of natural musk odorous compounds which resulted in the development of compounds such as muscone, dihydrocivetone, exaltone, exaltolide and ambrettolide which are reported to have commercial value. (wikipedia.org)

Rick currently teaches chemistry at MIT and his research group works on total synthesis of biologically active compounds and also works on annulation strategies. (wikipedia.org)

The study of organic reactions includes probing their scope through use in preparation of target compounds (e.g., natural products, drugs, polymers, etc.) by chemical synthesis, as well as the focused study of the reactivities of individual organic molecules, both in the laboratory and via theoretical (in silico) study. (wikipedia.org)

They come in sizes of three atoms and upward, and in combinations of linkages that include tethering (such as in biaryls), fusing (edge-to-edge, such as in anthracene and steroids), links via a single atom (such as in spiro compounds), and bridged cyclics such as the longifolene example. (wikipedia.org)

Compounds and metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof having up to 60 atoms other than hydrogen, said ligand comprising at least: (1) a cyclopentadienyl ring, (2) a 6,7,or 8 membered ring other than a 6-carbon aromatic ring, and (3) an aromatic. (google.es)

Clayden simplifies this description, saying that bridged bicyclic compounds "are just what the name implies-[molecules in which] a bridge of [an atom or of atoms] is thrown across from one side of the ring to the other," examples of which are shown at left and right, and below. (wikipedia.org)

The range of chemicals studied in organic chemistry include hydrocarbons (compounds containing only carbon and hydrogen), as well as myriad compositions based always on carbon, but also containing other elements, especially oxygen, nitrogen, sulfur, phosphorus (these included in many organic chemicals in biology) and the radiostable elements of the halogens. (wikipedia.org)

To convert compound D to 12cyclacene, Stoddart and co-workers used a two-step process where the 6 ether linkages in D were removed and additional double bonds were generated to afford the -systems in the final product. (wikipedia.org)

This timely reference presents the state of the art of the emerging and rapidly changing field of bioremediation of chlorinated solvents, PCBs, and other chlorinated compounds, as well as PAHs, both in situ and on site. (powells.com)

Vinylbutadiene (dendralene) was first prepared in 1955 by pyrolysis of a triacetate: This compound reacts with two equivalents of maleic anhydride in a tandem DA reaction: With benzoquinone the reaction product was a linear polymer. (wikipedia.org)

This compound is converted to a Grignard reagent by action of magnesium metal which is then reacted with copper(I) chloride to an organocopper intermediate which is in turn dimerized using copper(II) chloride in an oxidative coupling reaction to give the butadiene dimer called dendralene. (wikipedia.org)

Impurities, which may or may not be present in commercial samples, can catalyze the explosive decomposition reaction of this compound in the presence of oxygen. (wikipedia.org)

A reaction that forms an arene compound from an unsaturated or partially unsaturated cyclic precursor is simply called an aromatization. (wikipedia.org)

1. A polycyclic pentafluorosulfanylbenzene compound represented by following general formula (1): ##STR00015## wherein R 1 to R 4 each independently represent hydrogen atom or fluorine atom, R 5 represents a hydrocarbon group having at least two cyclic structures which may have substituents, and Z represents keto group, thioketo group, methylene group or difluoromethylene group. (patentsencyclopedia.com)

It is known that pentafluoro sulfur compounds having a specific structure, i.e., oxycarbonylpentafluorosulfanylbenzene compounds, are useful as the material for liquid crystals (for example, refer to Patent References 1 to 3). (patentsencyclopedia.com)

Some non-benzene-based compounds called heteroarenes, which follow Hückel's rule (for monocyclic rings: when the number of its π-electrons equals 4n + 2, where n = 0, 1, 2, 3,…), are also called aromatic compounds. (wikipedia.org)

This increased interest in polynitrogen compounds in the late twentieth century was due to the advance of computational chemistry which predicted that these types of molecules could be used as potential high energy density matter (HEDM) sources. (wikipedia.org)

3 radical, binding of two N 2 molecules in the excited state, and extrusion from polycyclic compounds, none of which could be accomplished experimentally. (wikipedia.org)

Among the straight-chain dialkyl compounds this di- n -propyl compound represents a peak of activity in a series of which the first (methyl) and higher ( n -amyl, n -hexyl) members are inactive. (royalsocietypublishing.org)

In 2008, within 50 km of oil sands upgrading facilities, the loading to the snowpack of airborne particulates was 11,400 T over 4 months and included 391 kg of polycyclic aromatic compounds (PAC), equivalent to 600 T of bitumen, while 168 kg of dissolved PAC was also deposited. (pnas.org)

This is in contrast to carbon containing compounds which have lower energies of formation for an equivalent number of single or double bonds than for a C≡C triple bond, allowing for the thermodynamically favorable formation of polymers. (wikipedia.org)

e.g., zinc, copper, palladium, nickel, cobalt, titanium and chromium) Finally, organic compounds form the basis of all earthly life and constitute a significant part of human endeavors in chemistry. (wikipedia.org)

The bonding patterns open to carbon, with its valence of four-formal single, double, and triple bonds, as well as various structures with delocalized electrons-make the array of organic compounds structurally diverse, and their range of applications enormous. (wikipedia.org)